Efficient Power Electronics Conversion TRIZ Cases

Dynamically adjusts auxiliary switch ON time based on real-time signals to achieve zero voltage switching and reduce power loss.

Controller dynamically adjusts switching patterns in resonant converter to generate single-phase output while reducing component stress.

Segmenting control loops into independent PI and quasi-resonant paths resolves the trade-off between DC accuracy and 120-Hz ripple reduction.

Parallel resonant converters balance output currents by interleaving driving signals with preset phase shifts.

A bidirectional power factor correction module uses a dual inductor bridge arm assembly to enable AC supply, DC supply, and power feed modes.

A control circuit senses primary-side current to regulate switch duty cycle for LLC resonant converters.

A control apparatus inhibits synchronous rectifying switching elements at low output currents to prevent component damage.

Adaptive blanking time prevents voltage sampling errors during low input valleys by extending demagnetization periods for stable output detection.

Dynamic transistor resistance limits inrush current and stabilizes output voltage against startup instability.

Dynamic auxiliary dead time adjustment aligns primary switch zero crossing with turn-on, eliminating power loss from missed zero voltage switching timing.

A power factor correcting current resonance converter synchronizes switching operations using a single control circuit to eliminate interference.

Tertiary-side commutation-side synchronous rectifier stabilizes detected voltage signals.

A control method adjusts master switch frequency to generate reverse current and reduce switching loss in active clamp converters.

A DC-DC converter modulates switching frequency to maintain high efficiency under light load conditions.

Dynamic dead-time adjustment based on detected body diode conduction reduces energy losses while preventing shoot-through currents across process variations.

A duty cycle estimation circuit generates and refines load current estimates using a latch, low pass filter, and comparator.

A bidirectional multimode power converter dynamically adjusts voltage and frequency to transform AC or DC inputs into programmable outputs.

Series and parallel snubber circuits mitigate voltage spikes during switching operations, reducing stress on the switching mechanism.

Snubber circuit extends diode reverse recovery time to regenerate surge power, reducing energy losses in rectifying circuits.

A power factor correction device uses a built-in THD reducer to automatically optimize total harmonic distortion without manual adjustment.

Parallel capacitors across secondary switching elements maintain output voltage during open circuit operation.

A switching power supply clamp circuit stabilizes output voltage through dynamic PWM control and phase compensation.

A bridgeless flyback converter circuit relocates AC line frequency filtering to the secondary side using a compensation stage with a storage capacitor.

A synchronization circuit delays boost signals to prevent noise interference with critical events.

A switched-mode power supply manages capacitor discharge into loads during high impedance states, reducing power loss and stabilizing output voltages.

Segmented flywheel-and-separation diodes reduce reverse recovery energy loss and lower component withstand voltage requirements for distributed power sources.

Transformer model infers output voltage from primary measurements, eliminating high-voltage isolation elements.

A control unit suppresses DC-DC output power when the DC link voltage drops below a threshold.

A short protection circuit adjusts reset stage duration based on detected output voltage during hiccup mode.

A power supply device estimates input current by monitoring the rate of change of bus voltage during the switching off period.

Coordinating primary and secondary phase shifts eliminates inner current loops, reducing controller complexity while maintaining sinusoidal input current.

Current transformers feed a microcontroller that detects non-zero voltage switching in cooktops, adjusting frequency to prevent shoot-through energy loss.

A multi-port converter topology uses a single secondary winding coupled to multiple primary windings on shared magnetic cores.

Filtering ripple voltage from the control signal reduces harmonic distortion and subharmonic oscillations in UPS frequency converter input currents.

A charge pump system uses pulse width modulation to regulate output voltage with high precision.

A power supply control device switches reference voltages to lower output levels across multiple loads simultaneously.

A constant on-time isolated converter uses a secondary-side processor to detect output voltage and current directly.

An input interruption detection unit shortens switching element on-time to suppress output voltage overshoot during momentary AC input halts.

Integrated bootstrap voltage regulator eliminates separate supply and high-breakdown diode to reduce power losses in active clamp circuits.

A boost control apparatus calculates the change rate of inductor output current to determine zero crossing for duty control switching.

Predictive timing techniques in flyback converters reduce synchronous rectification complexity by copying primary side control signals to the secondary side.

Separate controllers enable soft switching that reduces AC grid noise while maintaining power conversion efficiency.

A DC-DC converter switches between full-bridge and half-bridge modes to maintain high efficiency across varying load conditions.

Dedicated latch trigger circuit forces main converter shutdown upon detecting overvoltage or overcurrent anomalies in the power supply system.

A DC/DC converter measures inductor current using parasitic DCR and a capacitor network to eliminate external sense resistors.

A controller regulates internal operating characteristics of a power converter using measured parameters and environmental signals to optimize performance.

Grounding transformer windings during dead time prevents energy backflow that causes short circuits in integrated CMOS drivers.

A control device adjusts switching frequency based on output voltage to optimize power conversion efficiency.